History remembers her as cruel. But history was written by men. Fastrada always knew her marriage to King Charles was strategic. She was sent to secure power, protect her family, and survive a court built on loyalty, ambition, and blood. What she did not expect was Charles. Charming. Brilliant. Devoted. Kind. A king with blood on his hands and tenderness in his touch. Against every warning, Fastrada falls for the man she was meant to deceive. But love offers little protection in a kingdom where every alliance has a price, and the crown she once dreamed of wearing begins to feel more like a collar. Caught between her father’s rebellion and her husband’s growing obsession, Fastrada turns to forbidden magic to survive. A ring worn. A bargain made. A spell meant to keep her safe. But something ancient is watching from the shadows. And as secrets coil around her fate, Fastrada must decide how much of herself she is willing to sacrifice for power, love, and survival. She Who Broke the Covenant is a dark, female-centric historical romantasy woven with folklore, power, obsession, and betrayal.